Improvement in machines for breaking and cubing stone



/ f'r'ff Patented July 23,1872.

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v 'H. J. BROWNE & A. HOPE. Improvement in Machines for Breaking and Cubing Stone.

A No. 129,784.

HUGH JUNOR BROWNE, OF MELBQURNE, AND ARTHUR HOPE, OF PRAHRAN PATENT OFFICE a COLONY OF VICTORIA.

W IMPROVEMENT IN MACHINES FOR BREAKING AND CL IBING S}TONE.

Specification forming part of Letters Patent No. 129,784, dated July 23, 1872.

SPECIFICATION.

We, HUGH J UNOR BBOWNE, of Melbourne, in the colony of Victoria, merchant, and AR- THUR HOPE, of Prahran, in the same colony, engineer, have invented Improvements in the Construction of Machinery for Breaking and i Oubing Stones and other hard substances, of

which the following is a specification:

This invention relates to improvements in the construction of stone breaking and cubing machines; and consists in lessening the power required to break stones, and simplifying the same by means of a direct-acting lever of the first or second order; also, rendering the stone of a cubical form by means of the fixed jaw being made at the lower extremity with a straight, curved, or angular set-off projecting forward beyond the general plane of the acting surface of the jaw, which set-01f has alternating serrations or grooves. The moving jaw, theserrations of which are continuous, may be either straight, curved, or angular at the lower extremity, so as to correspond with the fixed jaw. The ridges of one jaw coincide with the fiutings or channels of the other above an imaginary horizontal line; belowthat line 7 the tips of the ridges coincide with the tips ofthe ridges in the opposite jaw, forming square orifices, through which the stone operated upon has to pass, whereby .a simple and economical cubing action on the stone is obtained without interruption or stoppage; and in order that our said invention may be fully understood, we shall now proceed more particularly to describe the same, and for that purpose shall refer to the several figures on the annexed sheet of drawing, the sameletters of reference indicating corresponding parts in all the figures. Figure 1 is a sectional elevation. Fig. 2 is an elevation, and. Fig. 3 is a plan of our new stone-breaking and cubin g machine.

A is the frame or foundation by which the various parts are supported. B is a crankshaft, on which are fly-wheels O G and fast and loose pulleys D D. E is the lever; F the connecting-rod between the crank 13 and the closed above the line m n.

a loose serrated face fixed into moving jaw '11 by means of a key at upper extremities, as shown at t. K is the fixed jaw. L is a buffer attached to moving jaw H and fram A to produce the back action of jaw H; M is a wedge-block acting on a sliding block, N, worked by means of a screw and nut, as shown at u, to regulate the size of the stone broken. 0 is one of the two links to keep the fulcrum P. of lever E in its proper position in sliding block N. Q is a wroughtiron strap or band shrunk onframe Ato give it additional strength and resistance. R is one of the two wedges to fix the jaw K in its place. S S S are brackets on which the machinestands, and by which to fix it to stage or frame-work. T is a wrought-iron pin, upon which moving jaw H hangs; U, the space at which the stone or other substance to be 0perated upon is fed.

Fig. 4 is a plan of the face of our fixed jaw K. j j j are the points of the serrations and 1; i i are the bottoms of the recesses between the serrations in its face above the line m n and k k k are the points of the serrations and 'ternate, and these are continued 'in their respective lines until they terminate in the re- 'cesses.

Fig. 5 is a plan of the shifting-face J on moving jaw H, which has continuous vertical serrations f on its acting surface, but recedes slightly at its lower extremity below the line m n. Fig. 6 shows the faces of the jaws when Fig. 7 shows their faces at the line m a, forming square or diamondshaped orifices y y y 3 through which the stone operated on has to pass.

Claims.

In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

HUGH JUNOR BROWNE. ARTHUR HOPE.

Witnesses:

T. WOLF KILBY,

Miller Street, Richmond. J. W. SENoE GARDGER,

Accountant, 24 Market Building. 

